CYPHER_GET_CHANNEL_STATES = '\nMATCH (
c:Checkpoint {checkpoint_id: $checkpoint_id})\n -[:HAS_CHANNEL]->(cs:ChannelState
)\nWHERE cs.channel IN $channels AND cs.version IN $versions\nRETURN cs.channel as channel,\n cs.type as type,\n cs.blob as blob,\n cs.version as version\n'